Home / 140,792.64-194,298.70-77,130.42

Finding the Fourth Proportional to 140,792.64, 194,298.70 and 77,130.42

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Solution

The fourth proportional to 140,792.64, 194,298.70 and 77,130.42 is: 106,442.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,792.64 : 194,298.70 = 77,130.42 : x
  2. Step 2: Convert to fraction form
    140,792.64/194,298.70 = 77,130.42/x
  3. Step 3: Cross multiply
    140,792.64x = 194,298.70 × 77,130.42
  4. Step 4: Simplify right side
    140,792.64x = 14,986,340,336.45
  5. Step 5: Solve for x
    x = 14,986,340,336.45/140,792.64
  6. Step 6: Final answer
    x = 106,442.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.